68086442 has 8 divisors (see below), whose sum is σ = 102361536. Its totient is φ = 33965932.

The previous prime is 68086441. The next prime is 68086453. The reversal of 68086442 is 24468086.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 68086396 and 68086405.

It is not an unprimeable number, because it can be changed into a prime (68086441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37538 + ... + 39309.

It is an arithmetic number, because the mean of its divisors is an integer number (12795192).

Almost surely, 2^68086442 is an apocalyptic number.

68086442 is a deficient number, since it is larger than the sum of its proper divisors (34275094).

68086442 is a wasteful number, since it uses less digits than its factorization.

68086442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77292.

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 68086442 is about 8251.4509027201. The cubic root of 68086442 is about 408.3383910892.

The spelling of 68086442 in words is "sixty-eight million, eighty-six thousand, four hundred forty-two".